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Aquaculture and Fisheries

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Articles 361 - 378 of 378

Full-Text Articles in Life Sciences

New Distributional Records Of Fishes From The Lower Ouachita River System In Arkansas, Henry W. Robison Jan 1975

New Distributional Records Of Fishes From The Lower Ouachita River System In Arkansas, Henry W. Robison

Journal of the Arkansas Academy of Science

Fishes collected from the lower Ouachita River system in Arkansas during 1971-1974 are reported. As a result of these collections six species were added to the Ouachita River system ichthyofauna of Arkansas including an undescribed species of Notropis, Hybopsis aestivalis (Girard), Ictiobus bubalus (Rafinesque), Fundulus chrysotus (Gunther), Lepomis symmetricus (Forbes) and Etheostoma fusiforme barratti (Holbrook). New distributional records for Ichthyomyzon gagei (Hubbs and Trautman), Notropis maculatus (Hay), N. lutrensis (Baird and Girard), Erimyzon sucetta (Lacepede), Fundulus notti (Agassiz) and Lepomis marginatus (Holbrook) within the system also are presented.

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Age And Growth Of Bluegill, Lepomis Macrochirus Rafinesque, From Lake Fort Smith, Arkansas, Jacob J. Hogue, Raj V. Kilambi Jan 1975

Age And Growth Of Bluegill, Lepomis Macrochirus Rafinesque, From Lake Fort Smith, Arkansas, Jacob J. Hogue, Raj V. Kilambi

Journal of the Arkansas Academy of Science

A total of 337 bluegill from Lake Fort Smith were used for this study. Annuli were formed between late February and early June, the younger fish forming annuli earlier than older fish. Total length-scale radius and length-weight relationships were determined. Growth of bluegill was compared with that reported in other studies. Growth curves were analyzed by the Von Bertalanffy growth formula and the parameters were evaluated in terms of physical and biological factors.

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Quantitative Determination Of Trace Metals In Two Species Of Fish In The Cannon River, Robert E. Nesse, Jeff A. Elzinga Jan 1974

Quantitative Determination Of Trace Metals In Two Species Of Fish In The Cannon River, Robert E. Nesse, Jeff A. Elzinga

Journal of the Minnesota Academy of Science

ABSTRACT - Samples of fish were taken from three stations along the Cannon River and comparatively analyzed for concentrations of Copper and Mercury in their muscle tissue by atomic absorption spectrophotometry. Samples from different stations showed a difference in metal concentration.

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Ichthyofaunal Diversification And Distribution In Jane's Creek Watershed, Randolph County, Arkansas, Cheryl Lynn Fowler, George L. Harp Jan 1974

Ichthyofaunal Diversification And Distribution In Jane's Creek Watershed, Randolph County, Arkansas, Cheryl Lynn Fowler, George L. Harp

Journal of the Arkansas Academy of Science

The purposes of this study were to determine the qualitative and quantitative distribution of fishes in the Jane's Creek watershed. Jane's Creek is a clear, spring-fed Ozark stream in northeastern Arkansas. A knowledge of the ichthyofauna of this stream prior to a long-range impoundment is of significance to the natural history of Arkansas. Jane's Creek and its tributaries were found to be alkaline, with no measurable turbidity, and to have low levels of carbon dioxide. Dissolved oxygen values ranged from 6.1 to 16.0 ppm. Only slight differences in physicochemical conditions were noted among stations and between pool and riffle areas …

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Growth And Production Of Golden Shiner, Notemigonous Crysoleucas, Under Different Stocking Densities And Feeding Rates, Gary D. Hickman, Raj V. Kilambi Jan 1974

Growth And Production Of Golden Shiner, Notemigonous Crysoleucas, Under Different Stocking Densities And Feeding Rates, Gary D. Hickman, Raj V. Kilambi

Journal of the Arkansas Academy of Science

Experiments on the effects of stocking densities and feeding rates on growth and production of golden shiner were conducted under laboratory conditions. The stocking densities were 20, 28 and 36 fry per 60 gal of water. The fish in tanks with 28 fry were fed at 1, 3 and 5% feeding rates and the rest were fed at 5% feeding rate. A 5% feeding rate was found to be essential for good production. The stocking density of 20 fry (400 lb/acre production) with 5% feeding rate yielded better growth in weight and length and better production than the rest of …

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Some Physiochemical Parameters And Phytoplankton Standing Crop In Four Northeast Arkansas Commercial Fish Ponds, Haldor Marvin Wilkes, John K. Beadles Jan 1972

Some Physiochemical Parameters And Phytoplankton Standing Crop In Four Northeast Arkansas Commercial Fish Ponds, Haldor Marvin Wilkes, John K. Beadles

Journal of the Arkansas Academy of Science

Physicochemical conditions and chlorophyll a standing crop were studied from July 1970 through June 1971 in four commercial catfish ponds at the Arkansas State University Experiment Farm near Walcott, Greene County, Arkansas. Determinations of dissolved oxygen, free carbon dioxide, total alkalinity, temperature, pH, transparency, and chlorophyll a standing crop were made at two-week intervals except during fish harvesting operations. One diurnal measurement of dissolved oxygen, free carbon dioxide, and temperature was conducted 25-26 June 1971. Increased oxygen concentrations coincided with increased chlorophyll α concentrations. Free carbon dioxide and chlorophyll α values varied inversely throughout the study. Diurnal concentrations of free …

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Ichthyofaunal Diversification And Distribution In The Big Creek Watershed, Craighead And Greene Counties, Arkansas, James T. Jenkins, George L. Harp Jan 1971

Ichthyofaunal Diversification And Distribution In The Big Creek Watershed, Craighead And Greene Counties, Arkansas, James T. Jenkins, George L. Harp

Journal of the Arkansas Academy of Science

Big Creek is a relatively small deltaic stream, in northeastern Arkansas, in an area of intense cultivation. Recently it has been dredged in the interest of flood control. Lost Creek and Mud Creek are the major tributaries of Big Creek and collectively drain the Big Creek watershed. The streams were found to have relatively low alkalinity, moderate carbon dioxide, adequate oxygen values, and relatively high turbidity. Channeling of Big Creek and Lost Creek has effectively destroyed distinct pool-riffle biocies and reduced the number of acceptable spawning areas. Lost Creek, also, receives effluent from residential dwellings, a secondary treatment sewage plant, …

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Effect Of Domestic Effluent On Two Spring Surveys Of Fishes In Lost Creek, Craighead County, Arkansas, John K. Beadles Jan 1970

Effect Of Domestic Effluent On Two Spring Surveys Of Fishes In Lost Creek, Craighead County, Arkansas, John K. Beadles

Journal of the Arkansas Academy of Science

Lost Creek is representative of deltonic streams of the St. Francis Basin possessing characteristics of being turbid. It has a low flow velocity except during the annual spring rains. Lost Creek meanders approximately 18 km. before receiving effluents and empties into Big Creek approximately 4 km. west of Jonesboro, Arkansas. Five collecting stations were studied in 1966 while six stations were sampled in 1970. Some fishes have been found to tolerate moderate amounts of domestic effluents and it is probable that the two species Lepomis cyanellus and Ictalurus melas, collected within the effluents, were more resistant than the other species …

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Some Helminths Of Itasca Park Fishes, Omer R. Larson Jan 1966

Some Helminths Of Itasca Park Fishes, Omer R. Larson

Journal of the Minnesota Academy of Science

A helminth survey was conducted'. on 12 species of fish taken from the waters of Itasca State Park. An abundant and varied helminth fauna was found, with 3 l parasitic forms identified to genus or species. By taxonomic groups these included, 20 trematodes, 5 cestodes, 2 acanthocephalans, and 4 nematodes. Every fish examined was parasitized, but yellow perch and rockbass possessed the greatest variety of helminths. Based on the results of this survey, several aspects of parasite life cycles, geographic distribution, and hast specificity are discussed.

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The Fish Fauna Of The Mississippi River Above St. Anthony Falls As Related To The Effectiveness Of This Falls As A Migration Barrier, Samuel Eddy, John B. Moyle, James C. Underhill Jan 1963

The Fish Fauna Of The Mississippi River Above St. Anthony Falls As Related To The Effectiveness Of This Falls As A Migration Barrier, Samuel Eddy, John B. Moyle, James C. Underhill

Journal of the Minnesota Academy of Science

No abstract provided.

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Some Aspects Of Sport-Fishing Yields From Minnesota Lakes, Warren J. Scidmore Jan 1961

Some Aspects Of Sport-Fishing Yields From Minnesota Lakes, Warren J. Scidmore

Journal of the Minnesota Academy of Science

The value of angling as a recreational feature is generally recognized by everyone in Minnesota. About one adult Minnesotan in three fishes, to say nothing of those younger. than 16 who need no fishing license. The impact of this sport fishing on the economy of the state is considerable. The 1.3 million resident and non-resident anglers spend some 100 million dollars annually to catch fish (Scheftel, 1958) and the annual sportfishing catch of fish from some 2 million acres of Minnesota fishing waters has been conservatively estimated at about 25 million pounds (50 million fish) (Moyle, 1958).

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New Distributional Records Of Some Minnesota Fishes, Frank Nordlie, James C. Underhill, Samuel Eddy Jan 1961

New Distributional Records Of Some Minnesota Fishes, Frank Nordlie, James C. Underhill, Samuel Eddy

Journal of the Minnesota Academy of Science

Minnesota is almost unique in that its waters drain by three divergent courses: the Red River to the Arctic, the Great Lakes to the Gulf of St. Lawrence and the Mississippi River to the Gulf of Mexico. The close proximity of the headwaters of these several drainages present opportunities for certain species to move from one basin to another. Species restricted to the Arctic basin have their southern limits in northern and western Minnesota. Many eastern and southern species have their northern and western limits within the state. In spite of the fact that intensive collecting has been carried on …

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Intra-Specific Variation In The Common Shiner, Notropis Cornutus Frontalis (Agassiz) From Minnesota And South Dakota, James C. Underhill Jan 1961

Intra-Specific Variation In The Common Shiner, Notropis Cornutus Frontalis (Agassiz) From Minnesota And South Dakota, James C. Underhill

Journal of the Minnesota Academy of Science

The voluminous literature relating to intra-specific variations in fishes has been reviewed by Hubbs (1934, 1940), Tanning (1952), Lindsay (1953) and others. A majority of the workers have supported the interpretation that the variation is influenced by various environmental factors, primarily the temperature during the pre-fry stages of development. Certain of the meristic characters which show such variability have been generally used in identifying various races of minnows. If such characters as the number of anal fin rays or scales in the lateral line are easily influenced by the environment, their usefulness in defining races is certainly open to question. …

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A Preliminary Report On The Social Behavior Of The Northern Largemouth Bass Micropterus Salmoides (Lacepede) Under Experimental Conditions, Alred H. Grewe May 1953

A Preliminary Report On The Social Behavior Of The Northern Largemouth Bass Micropterus Salmoides (Lacepede) Under Experimental Conditions, Alred H. Grewe

Journal of the Minnesota Academy of Science

No abstract provided.

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A Study Of A Population Of Longnose Dace, Jerome H. Kuehn Apr 1949

A Study Of A Population Of Longnose Dace, Jerome H. Kuehn

Journal of the Minnesota Academy of Science

No abstract provided.

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Trout Foods In Gilmore Valley Creek, Winona County, Minnesota, L. George Apr 1947

Trout Foods In Gilmore Valley Creek, Winona County, Minnesota, L. George

Journal of the Minnesota Academy of Science

No abstract provided.

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Hybridization Between Northern Pike (Esox Lucius) And Muskellunge (Esox Masquinongy), Samuel Eddy Jan 1944

Hybridization Between Northern Pike (Esox Lucius) And Muskellunge (Esox Masquinongy), Samuel Eddy

Journal of the Minnesota Academy of Science

No abstract provided.

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How The U.S. Fish Commission Works, Franklin Benner Dec 1880

How The U.S. Fish Commission Works, Franklin Benner

Journal of the Minnesota Academy of Science

No abstract provided.

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